General Information on Sharpening Stone working Tools


Typical Grinding Media Used
  • SB-250 Original Grindstone, graded course
  • DC-250 Diamond Wheel Course
  • 60 grit ProEdge Zirconium Belt
  • CBN wheel : <100 grit
  • Very friable grindstone : 80 - 100 grit (possibly held on an angle grinder)
  • Sandpaper : <100 grit (possibly held on an angle grinder)

Shaping the Tool - Stone working tools are reshaped based on their need (as dictated by the material to be carved).

Notes regarding shaping of tools with carbide inserts, when using a high speed grinder with a friable grindstone :

  1. DO NOT cool by dipping in water. This will cause the carbide to crack due to shocks.
  2. It is also recommended that you don't grind up to the final tool edge. The rough grit of the grindstone can create edges on the carbide which is easily susceptible to fractures.


Typical Grinding Media Used
  • SB-250 Black Grindstone, graded fine
  • DE-250 Diamond Wheel Extra Fine
  • DF-250 Diamond Wheel Fine
  • 120 grit ProEdge Zirconium Belt
  • Pedia ProEdge Diamond Belt
  • 600 grit ProEdge Trizact Belt
  • 1,200 grit ProEdge Trizact Belt
  • CBN wheel : 150-180 grit
  • Very friable grindstone : 150 - 180 grit (possibly held on an angle grinder)
  • Sandpaper : 150 - 250 grit (possibly held on an angle grinder)

Sharpening the Tool - Stone working tools should be resharpened at the start of the day, and as needed.

As with shaping of tools with carbide inserts, when using a high speed grinder with a friable grindstone, DO NOT cool by dipping in water. This will cause the carbide to crack due to shocks.


Typical Grinding Media Used
  • SJ-250 Japanese Waterstone
  • DE-250 Diamond Wheel Extra Fine
  • 3,000 grit ProEdge Trizact Belt
  • CBN wheel : 500+ grit

Honing the Tool - Stone working tools should be honed when carving soft stones, especially before the final cuts.